apache/incubator-reef — pull request #12 by jwang98052 (2014-11-12 03:02:17+00:00)
Title: Juwang-Inserting LoggingScopes

With LoggingScope and LoggingScopeFactory, this PR is to insert LoggingScope in REEF code at major stages to measure the performance.
This is to resolve issue REEF-28 https://issues.apache.org/jira/i#browse/REEF-28?filter=-1